SB2020112502 - Multiple vulnerabilities in cPanel
Published: November 25, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to URL parameter injection issue in multiple interfaces. A remote authenticated attacker can trick a victim to perform actions they did not intend.
2) Improper Restriction of Excessive Authentication Attempts (CVE-ID: N/A)
The vulnerability allows a remote attacker to gain access to the system.
The vulnerability exists due to the two-factor authentication has no brute-force prevention. A remote authenticated attacker can launch a brute-force authentication attack and gain access to the target system.
3) Cross-site scripting (CVE-ID: N/A)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in WHM Transfer Tool interface. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.